"No. 1" , Huifeng's newly developed plant growth regulator launched last June and has been on hot sale ever since. The a.i. has high bioactivity, and its ability to induce plant cell division and callus thousand times more than the average high cytokinin. With very low toxicity and application amount, it is a safe product to the environment, people, animals and the biology. It is widely applied on fruits, cereals, and flowers with excellent performance on increasing the yield, improving agricultural product quality, and even advancing the flowering time and extending the flowering period.